directline直通行
directadj.直接的;笔直的;坦白的v.对准;指挥;指示;命令
direct-current electric field直流电场
Direct Tests and Indirect Tests直接测试和间接测试
direct axis transient impedance直轴瞬变阻抗
direct air - cooled condenser空冷凝汽器
direct current follow up system直流从动系统
direct-smelting in converters直接吹炼法
direct Euclidean reconstruction直接欧氏重建
direct radiographic enlargement直接放大X线摄影(术)
direct impedance plethysmograph直接式阻抗容积记录器